9845856338605 has 24 divisors (see below), whose sum is σ = 13823456919192. Its totient is φ = 6712418627712.

The previous prime is 9845856338603. The next prime is 9845856338641. The reversal of 9845856338605 is 5068336585489.

It can be written as a sum of positive squares in 4 ways, for example, as 821666105764 + 9024190232841 = 906458^2 + 3004029^2 .

It is not a de Polignac number, because 9845856338605 - 2¹ = 9845856338603 is a prime.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9845856338603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116105502 + ... + 116190271.

It is an arithmetic number, because the mean of its divisors is an integer number (575977371633).

Almost surely, 2^{9845856338605} is an apocalyptic number.

It is an amenable number.

9845856338605 is a deficient number, since it is larger than the sum of its proper divisors (3977600580587).

9845856338605 is a wasteful number, since it uses less digits than its factorization.

9845856338605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232295965 (or 232295958 counting only the distinct ones).

The product of its (nonzero) digits is 746496000, while the sum is 70.

The spelling of 9845856338605 in words is "nine trillion, eight hundred forty-five billion, eight hundred fifty-six million, three hundred thirty-eight thousand, six hundred five".